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            <h2 class="title"><a id="db_map_base_iterator"></a>Chapter 15. 
 Db_map_base_iterator  </h2>
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      <h4><a id="idp51101760"></a> Public Members </h4>
      <div class="informaltable">
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            <col />
            <col />
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          <thead>
            <tr>
              <th>Member</th>
              <th>Description</th>
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          </thead>
          <tbody>
            <tr>
              <td>
<a class="xref" href="db_map_base_iterator.html#stldb_map_base_iteratordb_map_base_iterator" title="db_map_base_iterator">db_map_base_iterator</a>
</td>
              <td>
   <p>Copy constructor. </p>        </td>
            </tr>
            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratordstr_db_map_base_iterator.html" title="~db_map_base_iterator">~db_map_base_iterator</a>
</td>
              <td>
   <p>Destructor. </p>        </td>
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            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_incr.html" title="operator++">operator++</a>
</td>
              <td>
   <p>Pre-increment. </p>        </td>
            </tr>
            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_decr.html" title="operator--">operator--</a>
</td>
              <td>
   <p>Pre-decrement. </p>        </td>
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              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_eq.html" title="operator==">operator==</a>
</td>
              <td>
   <p>Equal comparison operator. </p>        </td>
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              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_ueq.html" title="operator!=">operator!=</a>
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              <td>
   <p>Unequal comparison operator. </p>        </td>
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              <td>
<a class="xref" href="stldb_map_base_iteratoroperator__star.html" title="operator *">operator *</a>
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              <td>
   <p>Dereference operator. </p>        </td>
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              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_arrow.html" title="operator-&gt;">operator-&gt;</a>
</td>
              <td>
   <p>Arrow operator. </p>        </td>
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            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratorrefresh.html" title="refresh">refresh</a>
</td>
              <td>
   <p>Refresh iterator cached value. </p>        </td>
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            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratorclose_cursor.html" title="close_cursor">close_cursor</a>
</td>
              <td>
   <p>Close underlying Berkeley DB cursor of this iterator. </p>        </td>
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<a class="xref" href="stldb_map_base_iteratormove_to.html" title="move_to">move_to</a>
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              <td>
   <p>Iterator movement function. </p>        </td>
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              <td>
<a class="xref" href="stldb_map_base_iteratorset_bulk_buffer.html" title="set_bulk_buffer">set_bulk_buffer</a>
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              <td>
   <p>Modify bulk buffer size. </p>        </td>
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            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratorget_bulk_bufsize.html" title="get_bulk_bufsize">get_bulk_bufsize</a>
</td>
              <td>
   <p>Get bulk retrieval buffer size in bytes. </p>        </td>
            </tr>
            <tr>
              <td>
<a class="xref" href="stldb_map_base_iteratoroperator_assign.html" title="operator=">operator=</a>
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              <td>
   <p>Assignment operator. </p>        </td>
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      <h4><a id="idp51095280"></a>
Group</h4>
      <p>
<a class="xref" href="db_map_iterators.html" title="Chapter 14.  Iterator Classes for db_map and db_multimap">
 Iterator Classes for db_map and db_multimap  </a>
</p>
      <p>
</p>
      <div class="sect1" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h2 class="title" style="clear: both"><a id="stldb_map_base_iteratordb_map_base_iterator"></a>db_map_base_iterator</h2>
            </div>
          </div>
        </div>
        <div class="sect2" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h3 class="title"><a id="stldb_map_base_iteratordb_map_base_iterator_details"></a>Function Details</h3>
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            </div>
          </div>
          <pre class="programlisting">
db_map_base_iterator(const self &amp;vi)
 </pre>
          <p>Copy constructor. </p>
          <div class="sect3" lang="en" xml:lang="en">
            <div class="titlepage">
              <div>
                <div>
                  <h4 class="title"><a id="idp51102536"></a>Parameters</h4>
                </div>
              </div>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51100168"></a>vi</h5>
                  </div>
                </div>
              </div>
              <p>The other iterator of the same type to initialize this. </p>
            </div>
          </div>
          <pre class="programlisting">
db_map_base_iterator(const base &amp;vi)
 </pre>
          <p>Base copy constructor. </p>
          <div class="sect3" lang="en" xml:lang="en">
            <div class="titlepage">
              <div>
                <div>
                  <h4 class="title"><a id="idp51110728"></a>Parameters</h4>
                </div>
              </div>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51131680"></a>vi</h5>
                  </div>
                </div>
              </div>
              <p>Initialize from a base class iterator. </p>
            </div>
          </div>
          <pre class="programlisting">
db_map_base_iterator(db_container *powner, u_int32_t b_bulk_retrieval=0,
    bool rmw=false, bool directdbget=true,
    bool readonly=false)
 </pre>
          <p>Constructor. </p>
          <div class="sect3" lang="en" xml:lang="en">
            <div class="titlepage">
              <div>
                <div>
                  <h4 class="title"><a id="idp51132520"></a>Parameters</h4>
                </div>
              </div>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51132712"></a>b_bulk_retrieval</h5>
                  </div>
                </div>
              </div>
              <p>The bulk read buffer size. 0 means bulk read disabled. </p>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51133616"></a>directdbget</h5>
                  </div>
                </div>
              </div>
              <p>Whether do direct database get rather than using key/data values cached in the iterator whenever read. </p>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51134048"></a>readonly</h5>
                  </div>
                </div>
              </div>
              <p>Whether open a read only cursor. Only effective when using Berkeley DB Concurrent Data Store. </p>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51134472"></a>powner</h5>
                  </div>
                </div>
              </div>
              <p>The container which creates this iterator. </p>
            </div>
            <div class="sect4" lang="en" xml:lang="en">
              <div class="titlepage">
                <div>
                  <div>
                    <h5 class="title"><a id="idp51134792"></a>rmw</h5>
                  </div>
                </div>
              </div>
              <p>Whether set DB_RMW flag in underlying cursor. </p>
            </div>
          </div>
          <pre class="programlisting">
db_map_base_iterator()
 </pre>
          <p>Default constructor, dose not create the cursor for now. </p>
        </div>
        <div class="sect2" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h3 class="title"><a id="idp51111608"></a>Group: Constructors and destructor</h3>
              </div>
            </div>
          </div>
          <p>Do not create iterators directly using these constructors, but call <a class="link" href="stldb_mapbegin.html" title="begin">db_map::begin</a>
 or db_multimap_begin to get instances of this class.</p>
          <div class="simplesect" lang="en" xml:lang="en">
            <div class="titlepage"></div>
            <p><a class="link" href="stldb_mapbegin.html" title="begin">db_map::begin()</a>
 <a class="link" href="stldb_mapbegin.html" title="begin">db_multimap::begin()</a>
 </p>
          </div>
          <p>
</p>
        </div>
        <div class="sect2" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h3 class="title"><a id="idp51100232"></a>Class</h3>
              </div>
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  <a class="link" href="db_map_base_iterator.html" title="Chapter 15.  Db_map_base_iterator">db_map_base_iterator</a>
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